Transfer apparatus for shear-tables.



m 4 W W J. SIMPSON. TRANSFER APPARATUS FOR SHEAR TABLES. APPLIOATIONFILED DEG. 19, 1908. 944,972, Patented 1160.28, 1909.

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TRANSFER APPARATUS FOR SHEAR TABLES.

APPLICATION FILED DEG. 19I 1908. 944,972, Patented Dec. 28, 1909.

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UNITED STATES PATENT OFFICE.

JAMES SIMPSON, OF ldcKEESPORT, PENNSYLVANIA, ASSIGNOR TO NATIONAL TUBECOMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPORATION OF NEW JERSEY.

TRANSFER APPARATUS FOR SHEAR-TABLES.

To all whom it may concern:

Be it known that I, JAMES SIMPSON, of McKeesport, Allegheny county,Pennsylvania, have invented a new and useful Improvement in TransferApparatus for Shear- Tables, of which the following is a full, clear,andeXact description, reference being had to the accompanying drawings,forming part of this specification, in which Figure 1 is a plan showingmy improved apparatus constructed and arranged in accordance with myinvention and applied for use in connection with a shear and sheartable; Fig. 2 is longitudinal side elevation of the same; Fig. 3 is asectional end elevation of the shear table and transfer mechanism on theline III-III of Fig. 1.

My invention relates to the handling of long flexible rolled metalshapes after having been sheared to length and it more particularlyrelates to the handling of long, thin, narrow plates known to the tradeas skelp or pipe skelp.

The object of the invention is to provide novel means for handling suchmaterials after having been sheared, by the use of which delays in theshearing operations are prevented and the output of the shearingmechanism is greatly increased.

Another object of my invention is to provide improved apparatus by theuse of which the damage to the materials while being handled isprevented, and improved means for operating the transfer mechanism.

A further object of the invention is to provide means for actuating thetransfer mechanism in such manner as to utilize the interval of time inwhich the shear knives are in their inoperative position for performingthe transfer operation and means by which the transfer mechanism isautomatically returned to position after each transfer movement.

In the drawings, 2 represents a wellknown type of shear having a lowerstation ary shear knife or blade 3 and a reciprocating ram 4 with amovable shear blade 5 secured thereto. A shear table 6 on which theplates or other materials are delivered after the shearing operation, islocated in rear of and in line with the shear 2. The shear table 6 isprovided with an adjustable gage 7 which is arranged to be movedlongitudinally along the length of the table to differ ent locations toform a stop against which Specification of Letters Patent.

Application filed December 19, 1908.

Patented Dec. 28, 1909.

Serial No. 468,332.

the sheared or front end of the plates strike and in this way regulatethe cutting off of the plates to the desired length. The series oftransverse gaps 8 are provided in the top surface of the shear table 6to form passageways for the depending rocking arms 9 which are securedon the rocking shaft 10 at intervals in its-length. The shaft 10 extendslengthwise of and above the shear table 6, being mounted in bearings 11on the top of the bearing stands 12. The end of the shaft 10 adjacent tothe shear is pro vided with a bevel gear 13 which meshes with a similarbevel gear 14 on the shaft 15. The shaft 15 is mounted in bearings 16which. together with the bearing 11 for the shaft 10, are mounted on thebracket 12 which is bolted or otherwise secured to the side of the frameof the shear 2. The end of theshaft- 15 is provided with a rocking arm17 which engages with and is actuated by the cam 18 which is secured toand rotates with the shaft 19 on the shear by which the ram 1 isreciprocated in actuating the movable cutting knife of the shear.

A counterweight 20 is mounted on a lever 20 on the shaft 10 so as toautomatically bring the swinging arms 9 into their inoper ative positionout of the path of the plates being delivered from the shear to theshear table 6.

The shear is provided with pinch rolls 21 and 22, the pinch roll 21being positively rotated and the pinch roll 22 being arranged to movevertically toward and away from the pinch roll 21 so as to cause theplates when between these rolls to be fed forwardly bctween the shearknives and on to the table (3 when suflicient pressure is put on themovable pinch roll 22 by the shcarman or operator.

In the operation of my improved transfer mechanism, the plates or othermaterials to be sheared are successively fed forward between the shearknives 3 and Each plate is first fed forwardly and the front end iscropped. The plate is then fed forwardly by the operator by means of thepinch rolls 21 and 22 until the forward end of the plate is inengagementwith the gage or stop 7 The shear knives are then actuated tocut the plate to length. On the return movement of the plunger or ram 4.of the shear, the rotating cam 18 engages with the rocking arm 17 on theshaft 15 and through the bevel gears 13 and 13 rocks the shaft 10.lVhe-n the shaft 10 is rocked, the depending arms 9 will be positivelyswung outwardly and by engagement with the longitudinal edge of theplate which has just been sheared, will shift this plate transverselyacross the width of the shear table 6 and push the plate ofi the tableand out of the path of the next plate to be sheared. WVhen the cam 18becomes disengaged by reason of its rotation from the swinging arm 17,the counterweight 20 will act to bring the swinging arms back into theposition shown in Fig. 3, in readiness to again shift the plate sidewisewhen the shaft 10 is actuated. As the plates are successively sheared tolength, they are removed by the above described operation from the tableand out of the way of the next plate.

The stop 7 is arranged to be adjusted along the length of the table 6into different positions so as to permit of the plates being sheared toany desired length.

The advantages of my invention will be appreciated by those skilled inthe art. The use of my improved transfer mechanism permits the thinflexible plates to be removed from the shear table without distortion ordamage to the plates. The transfer mechanism is arranged to be actuatedduring the time that the movable shear knife is being moved back to itsoperative position. The transfer mechanism is actuated automaticallywith the movement of the shear knives and in this way accident or delaysto the apparatus are prevented and the output of the shearing mechanismis greatly increased.

lvlodifications in the construction and arrangement of the parts may bemade without departingfrom my invention.

The transfer mechanism is applicable to other uses than that shown anddescribed.

I claim 1. Apparatus for handling metal plates, comprising a shear, aplate receiving table on which the sheared plates are delivered endwisefrom the shear, mechanism arranged to shift the plates from the tablesidewise across the width of the shear table, and a cam on said sheararranged to actuate the shifting mechanism when the shear is actuated;substantially as described.

2. Apparatus for handling metal plates, comprising a shear, a platereceiving table, on which the sheared plates are delivered endwise fromthe shear, mechanism arranged to shift the plates sidewise from thetable, and means operated by the shear arranged to actuate the plateshifting mechanism when said shear is moving into its operativeposition; substantially as described.

3. Apparatus for handling metal plates, comprising a shear, a platereceiving table on which the sheared plates are delivered lengthwisefrom the shear, a rocking shaft having depending arms arranged tocontact with and move the plates on said table sidewise across the widthof the table, an arm connected with said shaft, and a cam on the sheararranged to contact with said arm and cause the depending arms to shiftthe plates on the table across the width of the table; substantially asdescribed.

4. In apparatus of the class described, the combination with a shear anda shear table in front of said shear having rocking means fortransferring plates sidewise across the width of the shear table, ofmeans for positively rocking the plate transferring means in onedirection and a counterweight for rocking the transferring means in theopposite direction; substantially as described.

In apparatus of the class describethtlie combination with a shear and ashear table located in front thereof, of mechanism for transferringplates sidewise on said shear table and means for actuating the transfermechanism to shift the plates while the shear is returning into itscutting position; substantially as described.

6. In apparatus of the class described, the combination with a shear anda shear table located in front thereof, of mechanism for transferringplates sidewise on said shear table and gearing connecting the shear andtransfer mechanism for actuating said transfer mechanism when the shearis operated; substantially as described.

In testimony whereof, I have hereunto set my hand.

JAMES SIMPSON. Witnesses this. P. DAVIS, R. E. PORTER.

